John Lo-minn Lai is CEO at Mister Car Wash, Inc. (MCW). They have made 10 open-market trades across 1 company since 2021, most recently 2026-05-19.
CIK 0001865267
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 10 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MCW | 5,270,624 | $37.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-19 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MCW | SELL | 2026-03-02 | 2026-03-03 | $7.08 | $156K | -2.0% | -1.8% | N/A |
| MCW | SELL | 2025-06-26 | 2025-06-27 | $6.13 | $416K | +12.5% | +6.4% | -12.0% |
| MCW | SELL | 2025-06-02 | 2025-06-03 | $6.69 | $562K | -4.2% | -2.3% | -14.7% |
| MCW | SELL | 2025-03-03 | 2025-03-04 | $8.44 | $372K | -2.8% | -8.6% | -17.8% |
| MCW | SELL | 2024-06-26 | 2024-06-27 | $6.93 | $470K | -8.0% | +6.1% | -4.5% |
| MCW | SELL | 2024-03-05 | 2024-03-07 | $7.69 | $356K | -3.9% | -10.1% | -10.3% |
| MCW | SELL · 10b5-1 | 2023-09-18 | 2023-09-18 | $6.01 | $3.3M | -8.1% | -6.8% | +35.4% |
| MCW | SELL · 10b5-1 | 2023-09-11 | 2023-09-11 | $6.38 | $2.3M | -8.6% | -11.4% | +26.7% |
| MCW | SELL · 10b5-1 | 2023-08-16 | 2023-08-16 | $6.73 | $2.4M | +10.3% | -8.3% | +7.1% |
| MCW | SELL · 10b5-1 | 2023-08-10 | 2023-08-25 | $7.06 | $1.4M | -15.8% | -28.0% | -4.4% |
| MCW | SELL · 10b5-1 | 2023-08-10 | 2023-08-10 | $7.06 | $1.1M | -3.6% | -7.7% | -8.7% |
| MCW | SELL · 10b5-1 | 2023-07-17 | 2023-07-18 | $9.52 | $3.4M | +6.3% | -28.5% | -36.4% |
| MCW | SELL · 10b5-1 | 2023-07-10 | 2023-07-11 | $9.74 | $3.4M | -4.1% | -29.8% | -45.7% |
| MCW | SELL · 10b5-1 | 2023-06-28 | 2023-06-30 | $8.65 | $3.1M | +2.8% | +3.3% | -42.5% |
| MCW | SELL | 2023-06-26 | 2023-06-28 | $8.46 | $574K | +12.8% | +11.4% | -37.9% |
| MCW | SELL · 10b5-1 | 2023-06-12 | 2023-06-14 | $8.87 | $4.9M | -1.7% | +14.1% | -30.2% |
| MCW | SELL | 2022-06-28 | 2022-06-30 | $11.47 | $785K | +5.0% | +8.3% | -14.7% |
| MCW | SELL | 2021-08-24 | 2021-08-26 | $19.42 | $22.3M | -1.1% | -6.1% | -10.4% |
| MCW | SELL | 2021-06-29 | 2021-07-01 | $15.00 | $32.6M | -1.2% | +1.6% | -18.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.